LED display screen capable of implementing a variety of assembling modes

ABSTRACT

An LED display screen having two or more frames each including a left and a right side plate. An oblique boss is disposed on left end surface of the left side plate. A through-hole extending left-and-right is defined in the right side plate. A front side plate and a rear enclosure plate are respectively disposed on front and rear sides and enclose a space communicated with the through-hole. An arc-shaped locking mechanism disposed on the right side of the frame includes a rotating block between the front side plate and rear enclosure plate; a knob outside the front end of the front side plate and fixedly connected to the rotating block; and multiple differently inclined plates on the outer ring of the rotating block. The oblique boss of one frame is operative to abut against different inclined plates of an adjacent frame, respectively.

CROSS REFERENCE TO RELATED APPLICATIONS

This application is the national phase entry of InternationalApplication No. PCT/CN2017/090799, filed on Jun. 29, 2017, which claimspriority from the Chinese patent application no. 2017101157992 filed onMar. 1, 2017, the entire contents of which are incorporated herein byreference.

TECHNICAL FIELD

This disclosure relates generally to LED display screens, and moreparticularly relates to an LED display screen capable of implementing avariety of assembling modes.

BACKGROUND

LED display technology continues to develop and has found increasinglywide applications. The LED display industry is developing towardshigh-density, multi-shape, and ease of installation.

High-density indicates large screens are demanded, while multi-shapemeans the shape of the entire LED display screen is desired to bevariable to meet actual needs. Because large-screen LED displays are noteasy to transport, the typical solution is assembling a plurality ofsmaller LED display screens into a large-screen LED display. Eachsmaller LED display screen includes a frame and an LED display moduleinstalled at one side of the frame, so that a number of these frames canbe assembled together for a variety of assembling purposes.

But most of the plurality of frames lie in the same plane after they areassembled; that is, these frames are assembled to create a flat surface.There are also frames assembled to form a certain angle so that theentire LED display screen is a curved shape. Existing frame structure,however, can either be assembled into a planar configuration or beassembled into a shape having a certain angle which can only be a fixedangle. Thus, the compatibility between the planar configuration and theangular configuration cannot be attained, not to mention achievingassembled configurations having different angles. Which means it isimpossible to achieve a variety of assembling modes, so that the frameis not universal and frames of different structures would be requiredfor assembling LED display screens of different shapes, which wouldgreatly increase the cost.

SUMMARY

It is therefore one of various objects of this disclosure to overcomethe above shortcomings by providing an LED display that is capable ofimplementing a variety of assembling modes.

To achieve the above-mentioned object, the following technical solutionis adopted by this disclosure.

An LED display screen capable of implementing a variety of assemblingmodes is provided. The LED display screen includes two or more frameseach including a left side plate and a right side plate. An oblique bossis disposed on a left end surface of the left side plate. A through holeextending leftward and rightward is defined in the right side plate. Afront side plate and a rear enclosure plate are respectively disposed onthe front and rear sides to the left of the right side plate, and thespace between the front side plate and the rear enclosure plate iscommunicated with the through hole. An arc-shaped locking mechanism isdisposed on the right side of the frame and includes a rotating blockand a knob that are fixedly connected. The rotating block is disposedbetween the front side plate and the rear enclosure plate, while theknob is disposed outside the front end of the front side plate. Aplurality of inclined plates having different tilt angles is disposed onthe outer ring of the rotating block. The oblique boss of one of theframes is operative to stick with and abut against different inclinedplates of the rotating block of an adjacent frame respectively. The LEDdisplay screen capable of implementing a variety of assembling modes mayfurther include a quick locking mechanism configured to firmly connecttwo adjacent frames.

In some embodiments, a through hole extending leftward and rightward isdefined in the left side plate of the frame and penetrates through theoblique boss. An inverted double-D-shaped lock hole is defined in themiddle of each of the plurality of inclined plates of the rotatingblock. The quick locking mechanism includes a sleeve and a lock leverthat extend leftward and rightward, and a handle fixedly connected tothe right end of the lock lever. The sleeve is fixedly connected withinthe through hole. The lock lever is inserted through the sleeve andthreadedly connected to the sleeve. The handle is disposed on the rightside of the left side plate. An inverted double-D-shaped lock headcorresponding to the shape of the inverted double-D-shaped lock hole isdisposed at the left end of the lock lever, the inverted double-D-shapedlock head is operative to insert through the inverted double-D-shapedlock hole in each of the plurality of inclined plates of the rotatingblock of the adjacent frame into the rotating block of the adjacentframe.

In some embodiments, an angle indicator point is provided on the knob.

Correspondingly, a circle of angular digital marks is provided on thefront side plate around the knob.

In some embodiments, the arc-shaped locking mechanism further includes arotating shaft. An upper end of the rotating shaft penetrates throughthe front plate to be fixedly connected to the middle portion of theknob. A lower side of the rotating shaft is fixedly connected to therotating block. A circular mating hole is defined in the rear enclosureplate and a corresponding circular limiting step is disposed at thelower end of the rotating shaft. The circular limiting step at the lowerend of the rotating shaft passes downward through the rotating block andis relatively rotatably inserted into the circular mating hole.

In some embodiments, the rotating block further includes a middleportion, and a plurality of groups of extension plates extendingoutwardly from the middle portion. Each group of the plurality of groupsof extension plates is arranged as two extension plates spaced apartfrom each other, and an outer end of each group of the plurality ofgroups of extension plates is connected to one of the plurality ofinclined plates so that there is enclosed a space between the inclinedplate, the group of extension plates connected to the inclined plate,and the middle portion of the rotating block. The inverteddouble-D-shaped lock head is operative to insert through the inverteddouble-D-shaped lock hole of each of the plurality of inclined plates ofthe rotating block of the adjacent frame into the rotating block of theadjacent frame or into this enclosed space.

In some embodiments, the front end surface of the middle portion of therotating block is lower than the front end surface of the extensionplates. A protruding post is arranged on the inner end of the front sideplate and extends backward from the center of the inner end, so thatafter the arc-shaped locking mechanism is assembled, the front endsurface of the middle portion of the rotating block abuts against therear end surface of the protruding post, the front end surface of theextension plates abuts against the inner end surface of the front sideplate, and the rear end surface of the rotating block is in contact withthe inner end surface of the rear enclosure plate.

In some embodiments, connection holes extending forward and backward aredefined in both the center of the protruding post and the center of themiddle portion of the rotating block. The upper end of the rotatingshaft passes upward through the connection hole in the center of theprotruding post to be fixedly connected to the knob. The lower end ofthe rotating shaft inserts downward into the connection hole in thecenter of the middle portion of the rotating block. The circularlimiting step at the lower end of the rotating shaft passes through theconnection hole in the center of the middle portion of the rotatingblock to be inserted into the circular mating hole in the rear enclosureplate. The rotating shaft is fixedly connected with the middle portionof the rotating block.

In some embodiments, the rotating block includes a plurality of inclinedplates, a front plate connected to the front end of the plurality ofinclined plates, and a rear plate connected to the rear end of theplurality of inclined plates, wherein a hollow space is enclosed betweenthe front plate, the rear plate, and the plurality of inclined plates.

In some embodiments, a first elastic bead is arranged on the upper endsurface of the rotating block. Correspondingly, a plurality of firstpositioning holes corresponding to the number of the inclined plates ofthe rotating block is defined in the lower end surface of the front sideplate in an annular array.

In some embodiments, a second elastic bead is arranged on the obliqueboss. Correspondingly, a second positioning hole is arranged on each ofthe inclined plates of the rotating block and is operative to engagewith the second elastic bead and facilitate the positioning.

This disclosure can have the following advantages. Because the rotatingblock in accordance with the present disclosure is provided with aplurality of inclined plates having different tilt angles, differentinclined plates can respectively be engaged with the oblique boss of theother frame so that the two frames will make different angles after theyare assembled.

Thus, the frames of the LED display screen according to this disclosurecan not only be assembled into a planar configuration but they can alsobe assembled into angular configurations. That is, the LED displayscreen in accordance with the present disclosure can not only beassembled as a planar shape, but it can be assembled as a curved shapeand can further be assembled into curved shapes with differentcurvatures with superior assembling effects. In other words, the framesprovided by the present disclosure can implement a variety of assemblingmodes, so that LED display screens of different shapes can be assembledusing the frames provided by this disclosure; that is, the frameprovided herein has versatility and can thus greatly reduce the cost.

In addition, because the knob is provided with the angle indicator pointwhile the front side plate is provided with the corresponding angulardigital marks, in actual assembling the knob needs only to be directlyrotated to make the angle indicator point align with the desired angulardigital mark, which is particularly intuitive, so that the angleadjustment is particularly simple and convenient, and the operationdifficulty in assembling is greatly reduced. Furthermore, the structuralarrangement of the quick locking mechanism also makes it easier andfaster to lock the two frames together.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic diagram of an LED display screen in accordancewith an embodiment of the present disclosure.

FIG. 2 is a front perspective view of a frame of an LED display screenin accordance with an embodiment of the present disclosure.

FIG. 3 is a rear perspective view of a frame of an LED display screen inaccordance with an embodiment of the present disclosure.

FIG. 4 is an enlarged schematic view of an arc-shaped lock mechanism ofan LED display screen in accordance with an embodiment of the presentdisclosure.

FIG. 5 is an enlarged schematic view of part A of FIG. 2.

FIG. 6 is an enlarged schematic view of part B of FIG. 2.

FIG. 7 is an enlarged schematic view of part B of FIG. 2 observed fromanother perspective.

FIG. 8 is an enlarged schematic view of a quick locking mechanism of anLED display screen in accordance with an embodiment of the presentdisclosure.

FIG. 9 is an enlarged schematic view of part C of FIG. 3.

FIG. 10 is an enlarged schematic view of FIG. 9 with the rotating blockremoved.

FIG. 11 is an enlarged cross-sectional view of an arc-shaped lockmechanism of an LED display screen in accordance with an embodiment ofthe present disclosure.

DETAILED DESCRIPTION OF THE EMBODIMENTS

As illustrated in FIGS. 1 through 6, an LED display screen capable ofimplementing a variety of assembling modes in accordance with thepresent disclosure may include two or more frames 100. Each of theframes 100 includes a left side plate 1 and a right side plate 2. Anoblique boss 11 is disposed on the left end surface of the left sideplate 1. A through hole 21 is defined in the right side plate 2. A frontside plate 22 and a rear enclosure plate 23 are respectively disposed onthe front and rear sides to the left of the right side plate 2. Thespace between the front side plate 22 and the rear enclosure plate 23 iscommunicated with the through hole 21. An arc-shaped locking mechanism 3is arranged on the right side of the frame 100 and includes a rotatingblock 31 and a knob 32 that are fixedly connected to each other. Therotating block 31 is disposed between the front side plate 22 and therear enclosure plate 23. The knob 32 is disposed outside the front endof the front side plate 22. A plurality of inclined plates 311 havingdifferent tilt angles may be arranged on the outer ring of the rotatingblock 31. The oblique boss 11 of one of the frames 100 is operative toabut against the different inclined plates 311 of the rotating block 31of an adjacent frame 100, respectively. The LED display screen capableof implementing a variety of assembling modes may further include aquick locking mechanism 4 configured for firmly connecting two adjacentframes 100.

In connection also with FIGS. 7 and 8, in some embodiments a throughhole 10 extending leftward and rightward is defined in the left sideplate 1 of the frame 100. The through hole 10 penetrates through theoblique boss 11. An inverted double-D-shaped lock hole 312 is defined inthe middle of each of the plurality of inclined plates 311 of therotating block 31. The quick locking mechanism 4 includes a sleeve 41and a lock lever 42 that extend leftward and rightward, and a handle 43fixedly connected to the right end of the lock lever 42. The sleeve 41is fixedly connected within the through hole 10. The lock lever 42 isinserted through the sleeve 41 and threadedly connected to the sleeve41. The handle 43 is disposed on the right side of the left side plate1. An inverted double-D-shaped lock head 44 corresponding to the shapeof the inverted double-D-shaped lock hole 312 is disposed at the leftend of the lock lever 42. The inverted double-D-shaped lock head 44 isoperative to insert into the rotating block 31 of the adjacent frame 100via the inverted double-D-shaped lock hole 312 of each of the pluralityof inclined plates 311 of the rotating block 31 of the adjacent frame100.

In some embodiments, an angle indicator point 321 is provided on theknob 32. Correspondingly, a circle of angular digital marks 221 (asillustrated in FIG. 5) is provided on the front side plate 22 around theknob 32.

In connection also with FIG. 4 as well as FIGS. 9 to 11, in someembodiments the arc-shaped locking mechanism 3 further includes arotating shaft 33. The upper end of the rotating shaft 33 passes throughthe front side plate 22 to be fixedly connected to the middle of theknob 32, while the lower side of the rotating shaft 33 is fixedlyconnected to the rotating block 31. In some embodiments, a circularmating hole 231 may be defined in the rear enclosure plate 23, while acorresponding circular limiting step 331 may be arranged at the lowerend of the rotating shaft 33. The circular limiting step 331 at thelower end of the rotating shaft 33 passes downwardly through therotating block 31 and is then relatively rotatably inserted into thecircular mating hole 231. Thus, when the knob 32 is rotated driving therotating block 31 also to rotate, the circular limiting step 331 wouldkeep rotating within the circular mating hole 231. As such, the rotaryblock 31 can be ensured to only rotate but not move left or right whenthe knob 32 is rotating.

In some embodiments, in order to better secure the rotating shaft 33 andthe knob 32 relative to each other, the upper end of the rotating shaft33 is shaped as a cuboid 332. Correspondingly, a cuboid hole (not shown)is also defined in the middle of the knob 32. The cuboid 332 of therotating shaft 33 is inserted into the cuboid hole in the knob 32, andthen the knob 32 and the rotating shaft 33 are locked by a countersunkscrew.

In some embodiments, the rotating block 31 includes a middle portion313, and a plurality of groups of extension plates 314 extendingoutwardly from the middle portion 313. Each group of extension plates314 is arranged as two extension plates spaced apart from each other.The outer end of each group of extension plates 314 is connected to oneof the plurality of inclined plates 311 so that there would be encloseda certain space between the inclined plate 311, the group of extensionplates 314 connected to this inclined plate 311, and the middle portion313 of the rotating block 31. The inverted double-D-shaped lock head 44can be inserted into the rotating block 31 of the adjacent frame 100,i.e., into the enclosed space, through the inverted double-D-shaped lockhole 312 of each of the plurality of inclined plates 311 of the rotatingblock 31 of the adjacent frame 100.

In some embodiments, the front end surface of the middle portion 313 ofthe rotating block 31 is lower than the front end surface of theextension plates 314. Correspondingly, a protruding post 222 is arrangedon the inner end of front plate 22 and extends backward from the middleportion 313 of the inner end. Thus, after the arc-shaped lockingmechanism 3 is assembled, the front end surface of the middle portion313 of the rotating block 31 would abut against the rear end surface ofthe protruding post 222, while the front end surface of the extensionplates 314 would abut against the inner end surface of the front sideplate 22, and the rear end surface of the rotating block 31 would be incontact with the inner end surface of the rear enclosure plate 23. Assuch, the rotating block 31 cannot move back and forth relative to thefront side plate 22 and the rear enclosure plate 23.

In some embodiments, connection holes (not shown) that extend forwardand backward are defined in both the center of the protruding post 222and the center of the middle portion 313 of the rotating block 31. Theupper end of the rotating shaft 33 passes upward through the connectionhole in the center of the protruding post 222 to be fixedly connected tothe knob 32, while the lower side of the rotating shaft 33 insertsdownward into the connection hole in the center of the middle portion313 of the rotating block 31. Thus, the circular limiting step 331 atthe lower end of the rotating shaft 33 passes through the connectionhole in the center of the middle portion 313 of the rotating block 31 tobe inserted into the circular mating hole 231 in the rear enclosureplate 23. The rotating shaft 33 and the middle portion 313 of therotating block 31 can then be fixedly connected by a known fasteningmember such as a screw. Therefore, the knob 32 and the rotating block 31are fixedly connected to each other through the rotating shaft 33.

In some embodiments, in order to better protect the rotating block 31,the frame 100 further includes an outer plate 25 connected between thefront side plate 22 and the rear enclosure plate 23. Thus, the rotatingblock 31 would be located in the space surrounded by the front sideplate 22, the rear enclosure plate 23, and the outer plate 25. Theplurality of inclined plates 311 of the rotating block 31 wouldtherefore face the oblique boss 11 of the adjacent frame 100 through thethrough hole 21 in the right side plate 2 of the frame 100. In someembodiments, the front side plate 22, the outer plate 25, and the rightside plate 2 are integrally formed with each other, while the rearenclosure plate 23 is fixedly connected to the rear end of the outerplate 25 by means of a screw or a snap mechanism. Such an arrangementhas the advantage that the rear enclosure plate 23 is removablefacilitating the assembly of the frame 100 with the arc-shaped lockingmechanism 3.

Because the lock lever 42 is threadedly connected with the sleeve 41,when the handle 43 is rotated the lock lever 42 would not only move leftand right relative to the sleeve 41 but would also rotate at the sametime so that the inverted double-D-shaped lock head 44 would also rotateaccordingly. When the handle 43 is rotated to a certain angle in onedirection, the lock head would. as the lock lever 42 moves, retract intothe through hole 10 in the left side plate 1 of the frame 100, so thatthe inverted double-D-shaped lock head 44 can be protected from beingdamaged in the frame 100 during storage and transportation.

To assemble two frames 100 (for ease of description, the two frames 100will be hereinafter referred to as the first frame and the secondframe), because the angle of the oblique boss 11 stays unchanged, theinclined plate 311 of the rotating block 31 that has an appropriate tiltangle would need to be chosen based on the LED display screen shaperequirements to engage with the oblique boss 11. The choice can be madein the following manner. For example, if the LED display screen needs tobe a planar configuration, which indicates that the angle between thetwo frames 100 after they are assembled needs to be 0, then the knob 32can be rotated continually until the angle indicator point 321 thereonpoints to the angular digital mark of 10 degrees; at this point, theknob 32 is rotated in place. While during the rotating process of theknob 32, the rotating block 31 would also rotate accordingly so thatwhen the knob 32 is rotated in place, the inclined plate 311 on therotating block 31 with the corresponding tilt angle would be rotated toface the oblique boss 11 of the second frame. At this point, the handle43 on the second frame is rotated to drive the lock lever 42 to move inthe direction of the first frame, and the inverted double-D-shaped lockhead 44 is rotated to be parallel with the inverted double-D-shaped lockhole 312 in the inclined plate 311 with the corresponding tilt angle.Then the second frame is pushed, so that the inverted double-D-shapedlock head 44 of the second frame is inserted into the rotating block 31of the first frame through the inverted double-D-shaped lock hole 312 inthe rotating block of the first frame, and that the oblique boss 11 ofthe second frame would abut against the inclined plate 311 having thecorresponding tilt angle of the rotating block 31 of the first frame.After the inclined plate 311 sticks with the oblique boss 11, the rightside plate 2 of the first frame and the left side plate 1 of the secondframe would also completely fit together. That is, the two frames 100lie in the same plane, which means they are assembled into a planarconfiguration. At this point, the handle 43 can be rotated continuallyin the reverse direction so that the lock lever 42 is moved in theopposite direction until the inverted double-D-shaped lock head 44 abutson the inner side of the inclined plate 311 with the corresponding tiltangle and is no longer parallel with the inverted double-D-shaped lockhole 312 of this inclined plate 311. Thus, the inverted double-D-shapedlock head 44 cannot be pulled out from the inverted double-D-shaped lockhole 312. Therefore, the two frames 100 can be firmly locked andassembled together, and the two frames 100 lie in the same plane afterthey are assembled and so the LED display is in a planar shape.

If the assembled LED display screen needs to be curve-shaped and theangle between the two frames 100 after they are assembled is required tobe 15 degrees, then the knob 32 can be rotated continually until theangle indicator point 321 thereon is aligned with the angular digitalmark that represents 15 degrees. At this time, as the knob 32 is rotatedin position, the inclined plate 311 on the rotating block 31 havinganother corresponding tilt angle would also be rotated in an orientationthat faces the oblique boss 11 of the second frame, and the inclinedplate 311 can be moved to stick with and abut against the oblique boss11 of the second frame. As such, the two frames 100 would make an angleof 15 degrees after they are assembled and locked. Likewise, if otherangles are required, the knob 32 needs only to be rotated to make theangle indicator point 321 thereon point to the corresponding angulardigital mark 221 such that the inclined plate 311 on the rotating blockthat has the corresponding tilt angle would be rotated to thecorresponding position and engage with the oblique boss 11 of the secondframe, and so the two frames 100 would make a corresponding angle afterthey are assembled.

As described supra, because the rotating block 31 in accordance with thepresent disclosure is provided with a plurality of inclined plates 311having different tilt angles, different inclined plates 311 canrespectively be engaged with the oblique boss 11 of the other frame 100so that the two frames 100 will form different angles after they areassembled. Thus, the frames 100 of the LED display screen according tothis disclosure can not only be assembled into a planar configurationbut they can also be assembled into angular configurations. That is, theLED display screen in accordance with this disclosure can not only beassembled as a planar shape, but it can be assembled as a curved shape,and can further be assembled into curved shapes having differentcurvatures with superior assembling effects. In other words, the framesprovided by the present disclosure can implement a variety of assemblingmodes, so that LED display screens of different shapes can be assembledby using the frames 100 provided herein; that is, the frame 100 providedherein has versatility and can thus greatly reduce the cost. Inaddition, because the knob 32 is provided with the angle indicator point321 while the front plate 22 is provided with the corresponding angulardigital marks 221, in actual assembling the knob 32 needs only to bedirectly rotated to make the angle indicator point 321 align with thedesired angular digital mark 221, which is particularly intuitive, sothat the angle adjustment is particularly simple and convenient, and theoperation difficulty in assembling is greatly reduced. Furthermore, thestructural arrangement of the quick locking mechanism 4 also makes iteasier and faster to lock the two frames 100 together.

In some embodiments, a first elastic bead 310 is arranged on the upperend surface of the rotating block 31. Correspondingly, a plurality offirst positioning holes 220 corresponding to the number of the inclinedplates 311 of the rotating block are defined in the lower end surface ofthe front side plate 22 in an annular array. Through the cooperation ofthe first elastic bead 310 and the first positioning holes 220, therotating block 31, the knob 32, and the frame 100 can be betterpositioned relative to each other after rotating the knob 32.

In some embodiments, a second elastic bead 110 is arranged on theoblique boss 11. Correspondingly, a second positioning hole 315configured to engage with the second elastic bead 110 and facilitate thepositioning is arranged on each of the plurality of inclined plates 311of the rotating block 31. Through the cooperation of the second elasticbead 110 and the second positioning holes 315, two adjacent frames 100can be better positioned facilitating the assembling and locking of thetwo frames 100.

When the two frames 100 are to be disassembled, again the handle 43needs only to be rotated such that the lock lever 42 would be rotatedand moved and the inverted double-D-shaped lock head 44 would no longerstick with the inner side of the inclined plate 311. When the handle 43is rotated to a certain angle, the inverted double-D-shaped lock head 44would again be parallel with the inverted double-D-shaped lock hole 312,and the two frames 100 can be directly separated from each other. Inthis manner, the frames 100 in accordance with this disclosure can beconveniently and quickly assembled and disassembled.

In some embodiments, it is provided that each time the handle 43 isrotated it needs only to be rotated 90 degrees. That is, when the handle43 is rotated 90 degrees in one direction, the inverted double-D-shapedlock head 44 would be parallel with the inverted double-D-shaped lockhole 312, and the inverted double-D-shaped lock head 44 would be movedaway from the oblique boss 11 by a certain distance which ensures thatinverted double-D-shaped lock head 44 can be inserted into the rotatingblock 31 through the inverted double-D-shaped lock hole 312. When thetwo frames 100 are to be locked, the handle 43 is rotated 90 degrees inthe opposite direction so that the inverted double-D-shaped lock head 44moves as the lock lever 42 moves and then abuts on the inner side of theinclined plate 311 and orients perpendicular to the inverteddouble-D-shaped lock hole 312. At this point, the two frames 100 arelocked and thus assembled together.

In other embodiments, the rotating block 31 may include a plurality ofinclined plates, a front plate connected to the front end of theplurality of inclined plates, and a rear plate connected to the rear endof the plurality of inclined plates. Thus, a hollow space is enclosedbetween the front plate, the rear plate, and the plurality of inclinedplates. The rotating block of such an arrangement can be connected tothe knob 32, the front side plate 22, and the rear enclosure plate 23 byany publicly known and workable connection method, as long as theconnection does not affect the rotation of the rotating block 31 and theknob 32. That is, the specific shape of the rotating block 31 is notlimited, and the specific fixed connection method for connecting therotating block 31 and the knob 32 is also not limited, as long as theknob 32 and the rotating block 31 are fixedly connected and a pluralityof inclined plates 311 with different inclinations are arranged on theperiphery of the rotating block 31.

It should be understood that, although in some embodiments the lock holeand the lock head are both configured as an inverted double-D shape, inother embodiments the lock hole and the lock head can also be providedin other suitable shapes such as a rectangle 332, etc., as long as itcan serve the function as the inverted double-D shape.

Note, the foregoing description takes the orientation of FIG. 2 as thereference, the position where the quick locking mechanism 4 is locatedis taken as the left, the position of the arc-shaped locking mechanism 3is taken as the right, the position of the front side plate is taken asthe front, and the position of the rear enclosure plate taken as therear.

1. A light emitting diode display screen operative to implement aplurality of assembling modes, comprising two or more frames, whereineach frame comprises: a left side plate, comprising an oblique bossdisposed on a left end surface of the left side plate; a right sideplate, wherein a through hole extending leftward and rightward isprovided in the right side plate, and a front side plate and a rearenclosure plate are respectively disposed on front and rear sides to theleft of the right side plate, wherein the space between the front sideplate and the rear enclosure plate communicates with the through hole;an arc-shaped locking mechanism, disposed on the right side of the frameand comprising a rotating block disposed between the front side plateand the rear enclosure plate; a knob disposed outside a front end of thefront side plate and fixedly connected to the rotating block; and aplurality of inclined plates having different tilt angles disposed on anouter ring of the rotating block; wherein the oblique boss of one of theframes is operative to stick with and abut against different inclinedplates of the rotating block of an adjacent frame, respectively; and aquick locking mechanism configured to firmly connect the two adjacentframes.
 2. The light emitting diode display screen according to claim 1,wherein a second through hole extending leftward and rightward isprovided in the left side plate of the frame and penetrates through theoblique boss, and an inverted double-D-shaped lock hole is provided inthe middle of each of the plurality of inclined plates of the rotatingblock; wherein the quick locking mechanism comprises a sleeve and a locklever that extend leftward and rightward and a handle fixedly connectedto a right end of the lock lever, wherein the sleeve is fixedlyconnected within the second through hole, the lock lever is insertedthrough the sleeve and threadedly connected to the sleeve, and thehandle is disposed on the right side of the left side plate; and whereinan inverted double-D-shaped lock head corresponding to the shape of theinverted double-D-shaped lock hole is disposed at a left end of the locklever, and is operative to insert through the inverted double-D-shapedlock hole in each of the plurality of inclined plates of the rotatingblock of the adjacent frame into the rotating block of the adjacentframe.
 3. The light emitting diode display screen according to claim 2,wherein an angle indicator point is provided on the knob, andcorrespondingly a circle of angular digital marks is provided on thefront side plate around the knob.
 4. The light emitting diode displayscreen according to claim 1, wherein the arc-shaped locking mechanismfurther comprises a rotating shaft, wherein an upper end of the rotatingshaft penetrates through the front side plate to be fixedly connected toa middle portion of the knob, and a lower side of the rotating shaft isfixedly connected to the rotating block; a circular mating hole isprovided in the rear enclosure plate and a corresponding circularlimiting step is disposed at a lower end of the rotating shaft, whereinthe circular limiting step at the lower end of the rotating shaft passesdownward through the rotating block and is rotatably inserted into thecircular mating hole.
 5. The light emitting diode display screenaccording to claim 4, wherein the rotating block further comprises amiddle portion and a plurality of groups of extension plates extendingoutwardly from the middle portion, wherein each group of the pluralityof groups of extension plates is arranged as two extension plates spacedapart from each other, and an outer end of each group of the pluralityof groups of extension plates is connected to one of the plurality ofinclined plates so that there is enclosed a space between the inclinedplate, the group of extension plates connected to the inclined plate,and the middle portion of the rotating block; and the inverteddouble-D-shaped lock head is operative to insert through the inverteddouble-D-shaped lock hole of each of the plurality of inclined plates ofthe rotating block of the adjacent frame into the rotating block of theadjacent frame or into the enclosed space.
 6. The light emitting diodedisplay screen according to claim 5, wherein a front end surface of themiddle portion of the rotating block is lower than a front end surfaceof the extension plates, and a protruding post is arranged on an innerend of the front side plate and extends backward from the center of theinner end; wherein after the arc-shaped locking mechanism is assembled,a front end surface of the middle portion of the rotating block abutsagainst a rear end surface of the protruding post, a front end surfaceof the extension plates abuts against an inner end surface of the frontside plate, and a rear end surface of the rotating block is in contactwith an inner end surface of the rear enclosure plate.
 7. The lightemitting diode display screen according to claim 6, wherein connectionholes extending forward and backward are provided at both the center ofthe protruding post and the center of the middle portion of the rotatingblock; the upper end of the rotating shaft passes upward through theconnection hole in the center of the protruding post to be fixedlyconnected to the knob, and the lower side of the rotating shaft insertsdownward into the connection hole in the center of the middle portion ofthe rotating block; the circular limiting step at the lower end of therotating shaft passes through the connection hole in the center of themiddle portion of the rotating block to be inserted into the circularmating hole in the rear enclosure plate; and the rotating shaft isfixedly connected with the middle portion of the rotating block.
 8. Thelight emitting diode display screen according to claim 4, wherein therotating block comprises a plurality of inclined plates, a front plateconnected to a front end of the plurality of inclined plates, and a rearplate connected to a rear end of the plurality of inclined plates, andwherein a hollow space is enclosed between the front plate, the rearplate, and the plurality of inclined plates.
 9. The light emitting diodedisplay screen according to claim 1, wherein a first elastic bead isarranged on an upper end surface of the rotating block, and a pluralityof first positioning holes corresponding to the number of the inclinedplates of the rotating block are provided in a lower end surface of thefront side plate in an annular array.
 10. The light emitting diodedisplay screen according to claim 9, wherein a second elastic bead isarranged on the oblique boss, and correspondingly a second positioninghole is provided in each of the plurality of inclined plates of therotating block and is configured to engage with the second elastic beadand facilitate the positioning.
 11. The light emitting diode displayscreen according to claim 2, wherein the arc-shaped locking mechanismfurther comprises a rotating shaft, wherein an upper end of the rotatingshaft penetrates through the front side plate to be fixedly connected toa middle portion of the knob, and a lower side of the rotating shaft isfixedly connected to the rotating block; a circular mating hole isprovided in the rear enclosure plate and a corresponding circularlimiting step is disposed at a lower end of the rotating shaft, whereinthe circular limiting step at the lower end of the rotating shaft passesdownward through the rotating block and is rotatably inserted into thecircular mating hole.
 12. The light emitting diode display screenaccording to claim 3, wherein the arc-shaped locking mechanism furthercomprises a rotating shaft, wherein an upper end of the rotating shaftpenetrates through the front side plate to be fixedly connected to amiddle portion of the knob, and a lower side of the rotating shaft isfixedly connected to the rotating block; a circular mating hole isprovided in the rear enclosure plate and a corresponding circularlimiting step is disposed at a lower end of the rotating shaft, whereinthe circular limiting step at the lower end of the rotating shaft passesdownward through the rotating block and is rotatably inserted into thecircular mating hole.
 13. The light emitting diode display screenaccording to claim 2, wherein a first elastic bead is arranged on anupper end surface of the rotating block, and a plurality of firstpositioning holes corresponding to the number of the inclined plates ofthe rotating block are provided in a lower end surface of the front sideplate in an annular array.
 14. The light emitting diode display screenaccording to claim 3, wherein a first elastic bead is arranged on anupper end surface of the rotating block, and a plurality of firstpositioning holes corresponding to the number of the inclined plates ofthe rotating block are provided in a lower end surface of the front sideplate in an annular array.
 15. The light emitting diode display screenaccording to claim 4, wherein a first elastic bead is arranged on anupper end surface of the rotating block, and a plurality of firstpositioning holes corresponding to the number of the inclined plates ofthe rotating block are provided in a lower end surface of the front sideplate in an annular array.
 16. The light emitting diode display screenaccording to claim 5, wherein a first elastic bead is arranged on anupper end surface of the rotating block, and a plurality of firstpositioning holes corresponding to the number of the inclined plates ofthe rotating block are provided in a lower end surface of the front sideplate in an annular array.
 17. The light emitting diode display screenaccording to claim 6, wherein a first elastic bead is arranged on anupper end surface of the rotating block, and a plurality of firstpositioning holes corresponding to the number of the inclined plates ofthe rotating block are provided in a lower end surface of the front sideplate in an annular array.
 18. The light emitting diode display screenaccording to claim 7, wherein a first elastic bead is arranged on anupper end surface of the rotating block, and a plurality of firstpositioning holes corresponding to the number of the inclined plates ofthe rotating block are provided in a lower end surface of the front sideplate in an annular array.
 19. The light emitting diode display screenaccording to claim 8, wherein a first elastic bead is arranged on anupper end surface of the rotating block, and a plurality of firstpositioning holes corresponding to the number of the inclined plates ofthe rotating block are provided in a lower end surface of the front sideplate in an annular array.